04f0812530e811a004a40f0cc180d648e8258831fc3d5f2236de52516a5bedd5

Analysis

max time kernel
120s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
26/07/2024, 12:16

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General

Target

087f5abb6cda3698decb647e78c25790N.exe
Size

75KB
MD5

087f5abb6cda3698decb647e78c25790
SHA1

a78d84c5d992c67ac69cf06e55fb6003349a7108
SHA256

04f0812530e811a004a40f0cc180d648e8258831fc3d5f2236de52516a5bedd5
SHA512

c145c2d89d4bdb43f212822872d08954fb850ff04eb23a9c58e1d98e0c94f97422755abbe0cbe10c72792026e76a7a8b4192cd402c91f84426dadb580dad0655
SSDEEP

1536:V7Zf/FAxTWY1++PJHJXA/OsIZfzc3/Q8zxs:fnyiQSox

Score

9^/10

discovery ransomware upx

Malware Config

Signatures

Renames multiple (4138) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/5028-0-0x0000000000400000-0x000000000040B000-memory.dmp	upx
behavioral2/files/0x000900000002344c-2.dat	upx
behavioral2/files/0x0014000000022905-6.dat	upx
behavioral2/memory/5028-1740-0x0000000000400000-0x000000000040B000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File created	C:\Program Files\Microsoft Office\root\Licenses16\client-issuance-root.xrm-ms.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.IO.Compression.Brotli.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\D3DCompiler_47_cor3.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Google\Chrome\Application\123.0.6312.106\WidevineCdm\manifest.json.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Java\jre-1.8\lib\jfr.jar.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Access2019R_Trial-ul-oob.xrm-ms.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\api-ms-win-core-processthreads-l1-1-1.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Common Files\System\msadc\es-ES\msdaremr.dll.mui.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\System.Net.HttpListener.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\AccessR_OEM_Perp-pl.xrm-ms.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\MondoR_SubTrial2-ul-oob.xrm-ms.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\hostpolicy.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ko\System.Xaml.resources.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-core-file-l1-1-0.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365EduCloudEDUR_SubTrial-ul-oob.xrm-ms.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019R_Trial-ul-oob.xrm-ms.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\7-Zip\Lang\af.txt.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\7-Zip\Lang\hu.txt.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Security.Cryptography.Algorithms.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Standard2019VL_KMS_Client_AE-ul.xrm-ms.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\ru\System.Windows.Forms.resources.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Microsoft Office\root\Integration\C2RManifest.PowerView.PowerView.x-none.msi.16.x-none.xml.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\Professional2019R_PrepidBypass-ppd.xrm-ms.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\cs\System.Windows.Forms.resources.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\WindowsBase.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\santuario.md.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Common Files\System\Ole DB\de-DE\oledb32r.dll.mui.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\7.0.16\zh-Hans\UIAutomationTypes.resources.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Java\jre-1.8\legal\javafx\webkit.md.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.hr-hr.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\pl\PresentationUI.resources.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\System.Drawing.Design.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\VisioStd2019R_OEM_Perp-ul-oob.xrm-ms.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Common Files\System\msadc\ja-JP\msadcor.dll.mui.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Century Gothic-Palatino Linotype.xml.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019R_Trial2-ppd.xrm-ms.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\de\System.Windows.Forms.Primitives.resources.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pl\WindowsBase.resources.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Microsoft Office\root\Document Themes 16\Theme Fonts\Century Schoolbook.xml.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusiness2019R_Trial-ul-oob.xrm-ms.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlus2019VL_MAK_AE-ppd.xrm-ms.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Microsoft Office\root\Office16\ADDINS\Microsoft Power Query for Excel Integrated\bin\Microsoft.Mashup.Container.NetFX40.exe.config.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Common Files\System\msadc\es-ES\msadcer.dll.mui.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.ThreadPool.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Java\jre-1.8\lib\security\policy\limited\local_policy.jar.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\6.0.27\zh-Hant\System.Windows.Input.Manipulations.resources.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Java\jdk-1.8\bin\api-ms-win-crt-string-l1-1-0.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Java\jre-1.8\legal\jdk\bcel.md.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\mshwLatin.dll.mui.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Java\jdk-1.8\include\jni.h.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Java\jdk-1.8\legal\jdk\ecc.md.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Java\jre-1.8\lib\javafx.properties.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Common Files\microsoft shared\ink\ja-JP\rtscom.dll.mui.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.Channels.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\pt-BR\System.Windows.Controls.Ribbon.resources.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\HomeBusinessR_Retail-ul-phn.xrm-ms.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_Subscription4-pl.xrm-ms.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Common Files\microsoft shared\ClickToRun\AppVCatalog.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\ru\WindowsBase.resources.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App\8.0.2\System.Configuration.ConfigurationManager.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\7.0.16\System.Globalization.Extensions.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\8.0.2\System.Threading.Tasks.Extensions.dll.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\O365SmallBusPremR_SubTrial3-ul-oob.xrm-ms.tmp	087f5abb6cda3698decb647e78c25790N.exe
File created	C:\Program Files\Microsoft Office\root\Licenses16\ProPlusMSDNR_Retail-pl.xrm-ms.tmp	087f5abb6cda3698decb647e78c25790N.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	087f5abb6cda3698decb647e78c25790N.exe

C:\Users\Admin\AppData\Local\Temp\087f5abb6cda3698decb647e78c25790N.exe
"C:\Users\Admin\AppData\Local\Temp\087f5abb6cda3698decb647e78c25790N.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
PID:5028

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\$Recycle.Bin\S-1-5-21-2636447293-1148739154-93880854-1000\desktop.ini.tmp

Filesize
75KB

MD5
c990040922c2a80422a01bf4db887938

SHA1
2f6e8ca41139e4db3d5b9c52b9ffbb966c89cbe7

SHA256
6e6a87dcd01dc59f4142c455e6671f2b267ed6f7da9d15c38e66405cdc26ec32

SHA512
42bd213b8d80c7ef76b3d67620f7a604deea0d66d8d3d306d92625c4b3c00a347a28a46ae371de092865d242718bed324b64f68d8dfae7b6627193f8967d9465

Download Submit
C:\Program Files\7-Zip\7-zip.dll.tmp

Filesize
174KB

MD5
61ea96f0021912c2272bd7c44c02161b

SHA1
967e9d53860aed6299a1613b6414b6466e96d5e9

SHA256
62c51a71c68fe5aae9c5edbcccf2bea7b88912ac9852723a1d07f79252f52f59

SHA512
83ad7f6e51c8f2881c2c20ecfd9caa40d2f5385232325f51663fb63d417f309b4d0955f944417156bfba82c49b7f980d95499cb5d35f4348d92c90ad5e286143

Download Submit
memory/5028-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/5028-1740-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download